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![]() "Ralph Mowery" wrote in message ... I have a 6m transverter on the way this week to use just in time for the CQWW contest this weekend... one problem NO ANTENNA!! So I picked up a very old Yagi, built in 1969, but still in great condition. Its currently cut for the 40 MHz band, so I should be able to trim the elements down and change the spacing for a 3-element 6m antenna, right? Too late for it now I guess. If you know the frequency of the antenna then you can devide it by the frequency you want to operate on and change the lengths and spacings by the same fraction. Then if gamma matched adjust the gamma for a low swr. Ralph, You bring up a very valid point-- SCALING! This is an old trick I forgot about, but I'm certainly glad you mentioned it. One question-- this antenna has a gamma match-- how does the gamma match change with respect to all of the other new dimensions? |
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Matching 70 cm Yagi to coax feedline | Antenna |